Climate twins of Deer Park, IL
These are the US cities whose 12-month climate pattern most closely matches Deer Park's. Each "twin" must be at least 140 miles away to avoid trivial near-neighbor matches. Similarity is computed across all 24 monthly metrics (12 average temperatures + 12 average precipitations), normalized so temperature and precipitation contribute equally.
Side-by-side: Deer Park vs its climate twin
Top match: Victoria, IL
| Month | Deer Park | Victoria | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 28.7°F | 13.4°F | 2.07 in | 29.9°F | 13.0°F | 1.82 in |
| February | 32.8°F | 16.4°F | 1.90 in | 35.3°F | 15.8°F | 2.07 in |
| March | 44.5°F | 26.5°F | 2.35 in | 48.1°F | 26.5°F | 2.58 in |
| April | 57.5°F | 37.2°F | 3.95 in | 61.5°F | 36.9°F | 4.00 in |
| May | 68.5°F | 48.3°F | 5.15 in | 72.0°F | 49.2°F | 5.21 in |
| June | 77.5°F | 58.1°F | 4.60 in | 80.5°F | 58.9°F | 4.72 in |
| July | 81.3°F | 62.6°F | 4.02 in | 83.4°F | 61.8°F | 3.98 in |
| August | 79.2°F | 61.2°F | 4.58 in | 81.9°F | 59.3°F | 3.76 in |
| September | 72.4°F | 53.6°F | 3.65 in | 76.3°F | 51.6°F | 3.81 in |
| October | 60.1°F | 41.5°F | 3.39 in | 63.9°F | 39.8°F | 2.77 in |
| November | 46.3°F | 30.2°F | 2.58 in | 48.5°F | 28.1°F | 2.56 in |
| December | 34.2°F | 19.7°F | 2.19 in | 35.4°F | 18.7°F | 2.10 in |
How this is computed
Each city is represented by a 24-dimensional vector: 12 monthly average temperatures and 12 monthly average precipitations. Each dimension is z-score normalized across the population of US cities, so that temperature variance and precipitation variance contribute proportionally. Distance between cities is Euclidean. We filter out cities within 2° latitude/longitude (~140 miles) so that "twins" mean climatically similar but geographically distinct — not just the neighboring town. Full methodology →